參數(shù)資料
型號: IDT82P2521BH
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 63/147頁
文件大?。?/td> 0K
描述: IC LIU E1 21+1CH SHORT 640-PBGA
標準包裝: 5
類型: 線路接口裝置(LIU)
規(guī)程: E1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 640-BGA 裸露焊盤
供應商設備封裝: 640-PBGA-EP(31x31)
包裝: 托盤
其它名稱: 82P2521BH
IDT82P2521
21(+1) CHANNEL HIGH-DENSITY E1 LINE INTERFACE UNIT
Pin Description
22
December 7, 2005
Clock
MCLK
Input
AK19
MCLK: Master Clock Input
MCLK provides a stable reference timing for the IDT82P2521. MCLK should be a jitter-free 1
clock with ±50 ppm accuracy. The clock frequency of MCLK is informed to the device by
MCKSEL[3:0].
If MCLK misses (duty cycle is less than 30% for 10 s) and then recovers, the device will be
reset automatically.
MCKSEL[0]
MCKSEL[1]
MCKSEL[2]
MCKSEL[3]
Input
AF19
AF20
AF21
AF22
MCKSEL[3:0]: Master Clock Selection
These four pins inform the device of the clock frequency input on MCLK:
CLKE1
Output
AG18
CLKE1: 8 KHz / E1 Clock Output
The output on CLKE1 can be enabled or disabled, as determined by the CLKE1_EN bit (b3,
When the output is enabled, CLKE1 outputs an 8 KHz or 2.048 MHz clock, as selected by the
CLKE1 bit (b2, CLKG). The output is locked to MCLK.
When the output is disabled, CLKE1 is in High-Z state.
REFA
Output
AK18
REFA: Reference Clock Output A
REFA can output three kinds of clocks: a recovered clock of one of the 22 channels, an exter-
nal clock input on CLKA or a free running clock. The clock frequency is programmable. Refer
The output on REFA can also be disabled, as determined by the REFA_EN bit (b6, REFA).
When the output is disabled, REFA is in High-Z state.
Name
I / O
Pin No.
Description
MCKSEL[3:0]*
Frequency (MHz)
1000
2.048
1001
2.048 X 2
1010
2.048 X 3
1011
2.048 X 4
1100
2.048 X 5
1101
2.048 X 6
1110
2.048 X 7
1111
2.048 X 8
others
don’t care
Note:
0: GNDD
1: VDDIO
Note:
1. jitter is no more than 0.001 UI.
相關PDF資料
PDF描述
IDT72V3652L15PQF IC BI FIFO 4096X36 15NS 132QFP
V48B12M250B3 CONVERTER MOD DC/DC 12V 250W
V48B12M250B2 CONVERTER MOD DC/DC 12V 250W
IDT72V3652L15PF IC BI FIFO 4096X36 15NS 120QFP
IDT82V2088DR IC LIU T1/J1/E1 8CH 208-TQFP
相關代理商/技術參數(shù)
參數(shù)描述
IDT82P2521BHBLANK 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:21(1) Channel High-Density E1 Line Interface Unit
IDT82P2521BHG 功能描述:IC LIU E1 21+1CH SHORT 640-PBGA RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器,接收器,收發(fā)器 系列:- 標準包裝:250 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP(0.173",4.40mm 寬) 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR)
IDT82P2521BHGBLANK 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:21(1) Channel High-Density E1 Line Interface Unit
IDT82P2808 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:8(+1) Channel High-Density T1/E1/J1 Line Interface Unit
IDT82P2808BB 功能描述:IC LIU T1/J1/E1 8+1CH 416-PBGA RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器,接收器,收發(fā)器 系列:- 標準包裝:1,000 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 供應商設備封裝:16-SOIC 包裝:帶卷 (TR)